Thin rubber strips are used to provide increasing resistance to orthopedic patients during large motion exercises. The sheets shown are 0.03125 in thick and 3 in. wide. Say the rubber properties are 120 psi and v= 0.47. One end of the strip is wrapped around the doorknob, and the other end is wrapped around the hand. Say the portion of the strip that elongates is approximately 18 in. If a force of 2 lb is applied, what is the change in the strip's width and thickness?